Originally Posted by bigtimeoperator
What stubble height range are you able to achieve with that setup? Are you only using knife angle to change the cut height? Does tilting your knife forward cause more down pressure on head which subsequently causes feeder to lift (with AHHC active)? Are you referring to the white float pressure gauge on the header that houses the AHHC as your 1-2 height scale? At these settings are you cutting wheat that is relatively uniform in height across the field or are the hills shorter/draws longer?
Our durum is down quite bad and find we are leaving anywhere from 2-6'' stubble. On Case combines, 2013 FD70/2014 FD75, I've just been running manual height, knife angle at A-A.5, gauge wheels at 2nd notch from top. Cutting this short and in manual in unrolled, hilly, rocky ground is very stressful, unnerving and takes the fun out of combining. I'm going to play with mine some more to see if I can get AHHC to achieve similar results to manual operation.
You'll have to bear with me, in order to answer properly and completely I have to teach you some Claas tricks.
I can cut higher than I want to in any crop to answer your questions in order.
I'm never back to "A" on tilt scale that would be over a foot high. Oh oh, did I say foot? 305 mm. End of metric jokes.
But...my combine also has a hydraulic feeder faceplate and Claas changed the scale and operation in software this year and it's about a 100 times better setup than last year. Big deal, it was ....... awful last year!
Easier to play with you see, so the -10 to +10, the zero in the middle normal angle, it sets in 1 number increments, -10 steepest.
I found in my research by setting it at the flatter at +5 the header knife is flatter and even on ground the points are slightly up, this can help with less knife damage in rocks.
By the way, hydraulic faceplate is also a great tool for getting over bridges and fences, with the reel down in lowest position it's above the cab with scale at +10 and header all the way up.
MD tilt cylinder position steepest (D) with combine at +5 shaves as low I've wanted so far, dialing in a Claas steeper angle is a literal 2 second on the go job if I ever needed it for lodged stuff.
Yes, this setup it is quite uniform, I don't change settings wheels up or down and it's set pretty light.
If I was in hillier conditions I'd have to back main spring float off a bit but so far ok.
I hear ya, not having AAHC or auto steer is quitting material, if both lost I'm otta here! That would be my employee voice, not my crop owner voice.
WHEN you get it setup right it won't similar to you running it, it will be far better and no comparison less stressful!
Good luck, I hate to see people struggle with this stuff when I know how well it can work.
I don't think without being there I can be anymore help.
This thread is wildly off track but I can't figure out how to split it off.